AR.NET Licensing Logs and Update logs from Conversion tool
In ActiveReports there are two log types that are built in functionality.
Upgrade Logs are feature that allows for the upgrading of a project in VS from one version of AR to an other. The files are found inside of the project folder in its own .txt file.

The file will contain the logs which are shown in the conversion tool.
Licensing Logs are a feature that you can enable inside the new Mescius Licensing tool. It can be enabled via interacting with this checkbox:

The folder that the link takes to is:

Each time that a project is built there is a call to the licensing tool which will verify and give the application permission to build. From there these calls will be stored as individual files within the folder shown above.
Knowing the location of both of these logs will be helpful in any licensing related or updated related issues as you can share these with support to have a quicker time getting to the root of the issue.
Victor Stahlman